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TI-2026-53095 Aliases CVE-2026-75851GHSA-w65w-8843-879q

ArcadeDB before 26.8.1 Authentication Bypass via Async Command

Priority HIGH 76CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

ArcadeDB server (com.arcadedb:arcadedb-server) in versions 26.7.3 and earlier fails to propagate the authenticated principal to asynchronous command worker threads. When an HTTP command is submitted with awaitResponse:false, it executes on an async worker whose DatabaseContext has no bound user, causing the scripting authorization gate to become a no-op. A user with only read access to a single database can submit an asynchronous JavaScript (language=js) command via the /api/v1/command endpoint to run code with unrestricted host access (e.g., database.getSecurity().createUser) and create a server-wide administrator, escalating to full administrative control. Fixed in 26.8.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00391 33rd percentileScored 2026-11-07
Fix Fixed arcadedb (ArcadeData): 26.8.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ArcadeDataarcadedbbefore 26.8.126.8.1Patch availableCNA
  • arcadedb VendorArcadeData Affected before 26.8.1 Fixed in 26.8.1 Patch available CNA

Remediation

  • Fix · CNA arcadedb (ArcadeData) Fixed in 26.8.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ArcadeData arcadedb 26.8.1

    14 records Highest priority Priority HIGH 7 HIGH, 3 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-53098 ArcadeDB Redis Wire-Protocol Plugin Missing AuthenticationPriority HIGH 81
    • TI-2026-53086 ArcadeDB before 26.8.1 Arbitrary File Read via Unescaped RegexPriority HIGH 77
    • TI-2026-53089 ArcadeDB before 26.8.1 Privilege Escalation via gRPC TransactionPriority HIGH 76
    Show all 14 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-75851
  2. 2026-10-03 Alias added: GHSA-w65w-8843-879q

References

Advisory 1

  • TI-2026-53098 ArcadeDB Redis Wire-Protocol Plugin Missing Authentication CVSS 4.0CRITICAL 9.3
  • TI-2026-53086 ArcadeDB before 26.8.1 Arbitrary File Read via Unescaped Regex CVSS 4.0HIGH 8.7
  • TI-2026-53089 ArcadeDB before 26.8.1 Privilege Escalation via gRPC Transaction CVSS 4.0CRITICAL 9.4
  • TI-2026-53097 ArcadeDB Gremlin Wire Protocol Authorization Bypass Cross-Database CVSS 4.0HIGH 8.7
  • TI-2026-63057 ArcadeDB before 26.9.1 TimeSeries ACL Bypass via Type Permission CVSS 4.0HIGH 8.6
  • TI-2026-53099 ArcadeDB before 26.8.1 Path Traversal via create/drop database CVSS 4.0HIGH 8.4
See all 41 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences